openwrt/target/linux/brcm2708/patches-4.4/0062-config-Enable-CONFIG_MEMCG-but-leave-it-disabled-due.patch
John Crispin b3dc9566a4 brcm2708: switch to linux 4.4 and update patches
As usual these patches were extracted from:
https://github.com/raspberrypi/linux/commits/rpi-4.4.y

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

SVN-Revision: 48765
2016-02-25 10:14:01 +00:00

50 lines
1.3 KiB
Diff

From 3bbfaaf97f167d4f889c41822c4e767947fd1995 Mon Sep 17 00:00:00 2001
From: popcornmix <popcornmix@gmail.com>
Date: Wed, 18 Dec 2013 22:16:19 +0000
Subject: [PATCH 062/156] config: Enable CONFIG_MEMCG, but leave it disabled
(due to memory cost). Enable with cgroup_enable=memory.
---
kernel/cgroup.c | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -5273,7 +5273,7 @@ int __init cgroup_init_early(void)
return 0;
}
-static unsigned long cgroup_disable_mask __initdata;
+static unsigned long cgroup_disable_mask __initdata = 1<<0;
/**
* cgroup_init - cgroup initialization
@@ -5769,6 +5769,27 @@ static int __init cgroup_disable(char *s
}
__setup("cgroup_disable=", cgroup_disable);
+static int __init cgroup_enable(char *str)
+{
+ struct cgroup_subsys *ss;
+ char *token;
+ int i;
+
+ while ((token = strsep(&str, ",")) != NULL) {
+ if (!*token)
+ continue;
+
+ for_each_subsys(ss, i) {
+ if (strcmp(token, ss->name) &&
+ strcmp(token, ss->legacy_name))
+ continue;
+ cgroup_disable_mask &= ~(1 << i);
+ }
+ }
+ return 1;
+}
+__setup("cgroup_enable=", cgroup_enable);
+
/**
* css_tryget_online_from_dir - get corresponding css from a cgroup dentry
* @dentry: directory dentry of interest